7525657 has 2 divisors, whose sum is σ = 7525658. Its totient is φ = 7525656.

The previous prime is 7525633. The next prime is 7525709. The reversal of 7525657 is 7565257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4756761 + 2768896 = 2181^2 + 1664^2 .

It is a cyclic number.

It is not a de Polignac number, because 7525657 - 2¹⁹ = 7001369 is a prime.

It is a d-powerful number, because it can be written as 7² + 5 + 2¹⁶ + 5² + 6⁸ + 5⁶ + 7⁸ .

It is not a weakly prime, because it can be changed into another prime (7525457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3762828 + 3762829.

It is an arithmetic number, because the mean of its divisors is an integer number (3762829).

Almost surely, 2^7525657 is an apocalyptic number.

It is an amenable number.

7525657 is a deficient number, since it is larger than the sum of its proper divisors (1).

7525657 is an equidigital number, since it uses as much as digits as its factorization.

7525657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 73500, while the sum is 37.

The square root of 7525657 is about 2743.2930940751. The cubic root of 7525657 is about 195.9663363676.

The spelling of 7525657 in words is "seven million, five hundred twenty-five thousand, six hundred fifty-seven".